Practice: Dynamic Array Of Strings

Take out a piece of paper. We’ll be programming on paper.

Problem 1

Write a method multiply that takes a two dimensional array of ints and an int. The methods should return a two dimensional array that is the original array multiplied by the int.

Problem 2

Write a method transpose that takes a two dimensional array of doubles and returns the transposed matrix.

[ [ 1,	2 ]
[ 3,	4 ]
[ 5,	6 ] ]

Transposes into

[ [ 1,	3,	5 ]
[ 2,	4,	6 ] ]